Mid-Ohio Sports Car Course
Lexington, Ohio · 3.61 km · 2.25 mi · clockwise
Mid-Ohio Sports Car Course in Lexington, Ohio is a 3,614 m (2.25 mi) clockwise circuit with twelve modeled corners. Elevation in the source geometry runs from 397.4 m to 439 m — a 41.6 m (136 ft) spread, with 52.2 m of total climbing per lap. The simulated speed profile splits the lap cleanly in two: the fastest cornering comes at the end, where Turn 12's 79.9 m effective radius lets the model carry a 110 km/h (68 mph) minimum onto the front straight, while the middle of the lap — Turns 2 through 6 — is a sustained slow section with minimums pinned between 72 and 73 km/h (45 mph). The single hardest deceleration arrives at Turn 10, the Carousel, where the simulation peaks at 155 km/h (96 mph) before shedding more than 80 km/h. Simulated lap estimates: 93.3 s for a liter bike (139.4 km/h / 87 mph average), 94.7 s for a Supersport 600, and 97.8 s for a middleweight 650 twin. All figures on this page are physics-simulation estimates.
All figures: physics-simulation estimates · generated 2026-07-08 · methodology & assumptions
Track outline © OpenStreetMap contributors (ODbL)
Mid-Ohio Sports Car Course — quick facts
Motorcycle track guide · simulation estimates · 2026-07-08
- Length: 3,614 m (2.25 mi), run clockwise — 12 modeled corners
- Elevation: 397.4–439 m, a 41.6 m (136 ft) range with 52.2 m of climbing per lap
- Fastest corner (simulated): Turn 12, 110 km/h (68 mph) minimum on a 79.9 m radius
- Slowest section (simulated): Turns 2–6, minimums of 72–73 km/h (45 mph)
- Highest simulated corner-entry speed: 155 km/h (96 mph) into Turn 10 (Carousel)
- Simulated lap estimates: 93.3 s (liter bike), 94.7 s (Supersport 600), 97.8 s (650 twin)
- Longest single corner: Turn 10 at 317.9 m of arc length
Turn 1 — The Keyhole
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 131 km/h81 mph | 78 km/h48 mph | 130 km/h81 mph | 108 m354 ft | 40 m130 ft | -4.1 m-13 ft |
Supersport 600 preset · simulation estimates · liter-bike and 650-twin figures for every corner ship in the all-access pack · how these are computed
The Keyhole opens the lap: a 201 m right-hander on a 39.7 m effective radius that falls 4.1 m from entry to exit. In the simulation, all three bike classes arrive at essentially the same speed — about 131 km/h (81 mph) — because the corner sits early in the lap, but braking points diverge sharply with machine weight and power: the model starts braking 147 m out on the liter bike, 108 m on the Supersport 600, and only 72 m on the 650 twin. Minimum speed is identical across classes at 78 km/h (48 mph), and the exit builds back to roughly 130 km/h (81 mph), or 126 km/h (78 mph) for the twin. The downhill grade slightly reduces braking authority in the model, which is part of why the brake zones here are among the longest on the circuit. Physics-simulation estimates.
Turn 2
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 122 km/h76 mph | 73 km/h45 mph | 126 km/h78 mph | 141 m463 ft | 35 m115 ft | -6.1 m-20 ft |
Supersport 600 preset · simulation estimates · liter-bike and 650-twin figures for every corner ship in the all-access pack · how these are computed
Turn 2 is a long right — 287.9 m of arc on a 35.2 m effective radius — and the steepest descent among the modeled corners, dropping 6.1 m. The simulation enters at 122 km/h (76 mph) and settles to a 73 km/h (45 mph) minimum, the first of the slow-section corners that define the middle of the lap. The downhill entry stretches the brake zone: 174 m for the liter bike, 141 m for the Supersport 600, 111 m for the twin — the liter bike's 174 m is the longest simulated brake zone anywhere on this circuit. Exit speed recovers to 126 km/h (78 mph) for the fours and 124 km/h (77 mph) for the twin. Physics-simulation estimates.
Turn 3
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 122 km/h76 mph | 73 km/h45 mph | 126 km/h78 mph | 141 m463 ft | 35 m115 ft | -6.1 m-20 ft |
Supersport 600 preset · simulation estimates · liter-bike and 650-twin figures for every corner ship in the all-access pack · how these are computed
Turn 3 mirrors Turn 2 to the left: the source geometry gives it the same 35.2 m effective radius, the same 287.9 m length, and the same 6.1 m of descent, so the simulation produces identical numbers with the direction flipped. Entry is 122 km/h (76 mph), the minimum holds at 73 km/h (45 mph), and the model releases at 126 km/h (78 mph) — 124 km/h (77 mph) on the twin. Brake-start distances again fan out by class, from 174 m (liter bike) through 141 m (Supersport 600) down to 111 m (650 twin). Back-to-back right-left arcs of matched radius mean the modeled line spends nearly 580 m at or near the lap's minimum-speed band through this pairing. Physics-simulation estimates.
Turn 4
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 81 km/h50 mph | 73 km/h45 mph | 126 km/h78 mph | 6 m20 ft | 35 m115 ft | -4.2 m-14 ft |
Supersport 600 preset · simulation estimates · liter-bike and 650-twin figures for every corner ship in the all-access pack · how these are computed
Turn 5
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 122 km/h76 mph | 72 km/h45 mph | 128 km/h80 mph | 18 m59 ft | 34 m112 ft | -0.1 m-0 ft |
Supersport 600 preset · simulation estimates · liter-bike and 650-twin figures for every corner ship in the all-access pack · how these are computed
Turn 6
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 122 km/h76 mph | 72 km/h45 mph | 128 km/h80 mph | 18 m59 ft | 34 m112 ft | -0.1 m-0 ft |
Supersport 600 preset · simulation estimates · liter-bike and 650-twin figures for every corner ship in the all-access pack · how these are computed
Turn 7
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 134 km/h83 mph | 88 km/h55 mph | 132 km/h82 mph | 9 m30 ft | 51 m168 ft | -1.0 m-3 ft |
Supersport 600 preset · simulation estimates · liter-bike and 650-twin figures for every corner ship in the all-access pack · how these are computed
Turn 8
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 134 km/h83 mph | 88 km/h55 mph | 132 km/h82 mph | 9 m30 ft | 51 m168 ft | -1.0 m-3 ft |
Supersport 600 preset · simulation estimates · liter-bike and 650-twin figures for every corner ship in the all-access pack · how these are computed
Turn 9 — Thunder Valley
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 134 km/h83 mph | 97 km/h60 mph | 129 km/h80 mph | 42 m138 ft | 63 m205 ft | +5.2 m+17 ft |
Supersport 600 preset · simulation estimates · liter-bike and 650-twin figures for every corner ship in the all-access pack · how these are computed
Turn 10 — Carousel
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 155 km/h96 mph | 73 km/h45 mph | 126 km/h79 mph | 3 m10 ft | 35 m115 ft | -1.4 m-5 ft |
Supersport 600 preset · simulation estimates · liter-bike and 650-twin figures for every corner ship in the all-access pack · how these are computed
Turn 11
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 123 km/h77 mph | 73 km/h45 mph | 126 km/h79 mph | 48 m157 ft | 35 m115 ft | -2.6 m-9 ft |
Supersport 600 preset · simulation estimates · liter-bike and 650-twin figures for every corner ship in the all-access pack · how these are computed
Turn 12
| Entry | Min | Exit | Brake start | Eff. radius | Elev Δ |
|---|---|---|---|---|---|
| 150 km/h93 mph | 110 km/h68 mph | 146 km/h91 mph | 75 m246 ft | 80 m262 ft | +2.2 m+7 ft |
Supersport 600 preset · simulation estimates · liter-bike and 650-twin figures for every corner ship in the all-access pack · how these are computed